Stanstead College fields boys and girls basketball teams at the bantam, junior and senior level and participates in the local ETIAC high school league. In addition, the teams compete in several invitational and provincial tournaments throughout the winter season.
In 2009-2010, Stanstead College hosted the Anderson-Bailly Small Schools Tournament, where both the senior boys and girls ended up in second place. The boys were tournament champions at the BCS Invitational, while the girls were finalists at their home invitational, the Montreal Independent tournament and the McLeod provincial tournament.